Home / 646,904.10-970,356.15-488,273.70

Finding the Fourth Proportional to 646,904.10, 970,356.15 and 488,273.70

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Solution

The fourth proportional to 646,904.10, 970,356.15 and 488,273.70 is: 732,410.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,904.10 : 970,356.15 = 488,273.70 : x
  2. Step 2: Convert to fraction form
    646,904.10/970,356.15 = 488,273.70/x
  3. Step 3: Cross multiply
    646,904.10x = 970,356.15 × 488,273.70
  4. Step 4: Simplify right side
    646,904.10x = 473,799,387,678.26
  5. Step 5: Solve for x
    x = 473,799,387,678.26/646,904.10
  6. Step 6: Final answer
    x = 732,410.55

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.